Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751788AbWCDEpN (ORCPT ); Fri, 3 Mar 2006 23:45:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751792AbWCDEol (ORCPT ); Fri, 3 Mar 2006 23:44:41 -0500 Received: from e32.co.us.ibm.com ([32.97.110.150]:9115 "EHLO e32.co.us.ibm.com") by vger.kernel.org with ESMTP id S1751789AbWCDEod (ORCPT ); Fri, 3 Mar 2006 23:44:33 -0500 Date: Fri, 3 Mar 2006 21:44:32 -0700 From: john stultz To: lkml Cc: john stultz Message-Id: <20060304044431.12782.55836.sendpatchset@cog.beaverton.ibm.com> In-Reply-To: <20060304044404.12782.88641.sendpatchset@cog.beaverton.ibm.com> References: <20060304044404.12782.88641.sendpatchset@cog.beaverton.ibm.com> Subject: [PATCH 5/9] Time: i386 Conversion - part 1: Move timer_pit.c to i8253.c Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3312 Lines: 112 This patch is just a simple cleanup for the i386 arch in preparation of moving to the generic timeofday infrastructure. It simply moves the PIT initialization code, locks, and other code we want to keep from some code from timer_pit.c (which will be removed) to i8253.c. thanks -john Signed-off-by: John Stultz Makefile | 2 +- i8253.c | 32 ++++++++++++++++++++++++++++++++ time.c | 5 ----- timers/timer_pit.c | 13 ------------- 4 files changed, 33 insertions(+), 19 deletions(-) linux-2.6.16-rc5_timeofday-arch-i386-part1_B20.patch ============================================ diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 53bb9a7..09f0a91 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.ld obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \ - quirks.o i8237.o topology.o + quirks.o i8237.o i8253.o topology.o obj-y += cpu/ obj-y += timers/ diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c new file mode 100644 index 0000000..29cb2eb --- /dev/null +++ b/arch/i386/kernel/i8253.c @@ -0,0 +1,32 @@ +/* + * i8253.c 8253/PIT functions + * + */ +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "io_ports.h" + +DEFINE_SPINLOCK(i8253_lock); +EXPORT_SYMBOL(i8253_lock); + +void setup_pit_timer(void) +{ + unsigned long flags; + + spin_lock_irqsave(&i8253_lock, flags); + outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ + udelay(10); + outb_p(LATCH & 0xff , PIT_CH0); /* LSB */ + udelay(10); + outb(LATCH >> 8 , PIT_CH0); /* MSB */ + spin_unlock_irqrestore(&i8253_lock, flags); +} diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index a14d594..f6327de 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -82,11 +82,6 @@ extern unsigned long wall_jiffies; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -#include - -DEFINE_SPINLOCK(i8253_lock); -EXPORT_SYMBOL(i8253_lock); - struct timer_opts *cur_timer __read_mostly = &timer_none; /* diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c index b9b6bd5..44cbdf9 100644 --- a/arch/i386/kernel/timers/timer_pit.c +++ b/arch/i386/kernel/timers/timer_pit.c @@ -162,16 +162,3 @@ struct init_timer_opts __initdata timer_ .init = init_pit, .opts = &timer_pit, }; - -void setup_pit_timer(void) -{ - unsigned long flags; - - spin_lock_irqsave(&i8253_lock, flags); - outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ - udelay(10); - outb_p(LATCH & 0xff , PIT_CH0); /* LSB */ - udelay(10); - outb(LATCH >> 8 , PIT_CH0); /* MSB */ - spin_unlock_irqrestore(&i8253_lock, flags); -} - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/